Flottille unfolding origami is anti-nanotechnology, pro-chilaxing (video)

Turn the lights off, crank up your Music for Airports LP, and clear your appointments for the rest of the afternoon — it’s time to get your relaxation on with Flottille, tiny paper snowflakes that unfold as they’re exposed to water. French artist Étienne Cliquet uses a computer to design the machine-cut pieces, folds them by hand, and then gingerly dips them into the water with a pair of tweezers. The shapes expand slowly and hypnotically, likely the result of absorption through capillary action — not quite self-folding origami, but it’ll do in a pinch. Cliquet hopes they’ll shine some light on the “disturbing potential of micro and nanotechnology.” Fine, but what about the disturbing potential of origami-based technology?

Flottille unfolding origami is anti-nanotechnology, pro-chilaxing (video) originally appeared on Engadget on Fri, 20 May 2011 18:32:00 EDT. Please see our terms for use of feeds.

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Nanosys QDEF screen technology ships in Q4, slips into iPad at SID 2011 (video)

We dropped by Nanosys’ nook at SID 2011, and not only was it showing off its new Quantum Dot Enhancement Film, but had hacked the tech into an off-the-shelf iPad. A company representative presented the modified slate as an example of how quickly QDEF‘s high color gamut magic could be integrated into existing devices, offering “OLED color depth without OLED power consumption and OLED price.” Sure enough, we were told to expect to see QDEF in a “mobile device,” probably an Android tablet, sometime in Q4; when pushed for details, our rep could only tell us that the device would come from a Korean firm. (LG or Samsung, take your pick.)

Integrating QDEF into new devices may be a snap, but company representatives told us the film could add as much as 100 microns to a screen’s thickness, suggesting that smartphone manufactures aren’t too keen on the idea of a thicker display. Still, Nanosys has high hopes for the new film and told us that it expects high-color QDEF to become an “ecosystem changer,” as industry-altering as HDTV. The firm even suggested “wide color gamut” apps could be in our near future — we love our color depth here at Engadget, but somehow it’s hard to see Angry Birds: High Color (its suggestion, not ours) taking off. Check out our hands-on after the break.

Continue reading Nanosys QDEF screen technology ships in Q4, slips into iPad at SID 2011 (video)

Nanosys QDEF screen technology ships in Q4, slips into iPad at SID 2011 (video) originally appeared on Engadget on Wed, 18 May 2011 05:38:00 EDT. Please see our terms for use of feeds.

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Nanosys unveils Quantum Dot Enhancement Film for LCDs, promises all kinds of colors

Another day, another step closer to quantum dot reality. Today, Nanosys unveiled its new Quantum Dot Enhancement Film (QDEF), marking the first time that the nanotechnology is available for LCD manufacturers. According to the company, its optical film can deliver up to 60 percent of all colors visible to the human eye, compared with the 20 to 25 percent that most displays offer. To create QDEF, Nanosys’ engineers suspended a blend of quantum dots within optical film and applied it to a blue LED, which helped get the nanocrystals excited. Once they started hopping around, the dots emitted high-quality white light and a rich, wide color gamut, without consuming as much power as white LED-based materials. No word yet on when we can expect to see QDEF in consumer displays, but Nanosys claims that the film is “process-ready” and easy for manufacturers to integrate. For now, you can amuse yourselves by comparing the two frogs pictured above and guessing which one is covered in quantum dots. Full PR after the break.

Continue reading Nanosys unveils Quantum Dot Enhancement Film for LCDs, promises all kinds of colors

Nanosys unveils Quantum Dot Enhancement Film for LCDs, promises all kinds of colors originally appeared on Engadget on Tue, 17 May 2011 13:17:00 EDT. Please see our terms for use of feeds.

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MIT’s genetically modified viruses boost solar-cell efficiency by herding nanotubes

The wizards of MIT have done it again. Having checked artificial leaves and Operabots off the to-do list, they’ve moved on to improving the efficiency of solar cells. Their technique combines a genetically modified version of the M13 virus with carbon nanotubes, which have already been shown to increase efficiency. Unfortunately, some nanotubes enhance solar cell performance, while others inhibit it – and both types tend to clump together, negating their benefits. The modified M13 virus, however, can separate the two types as well as prevent clumping; we’ve seen similar use of the Tobacco mosaic virus to build better electrodes. Adding virus-built structures to dye-sensitized solar cells increased power conversion efficiency by almost one-third and, with only one additional step in the manufacturing process required, the new approach could be rapidly taken up by existing production facilities. MIT: proving once again that viruses are good for more than just smiting your enemies.

MIT’s genetically modified viruses boost solar-cell efficiency by herding nanotubes originally appeared on Engadget on Wed, 27 Apr 2011 19:17:00 EDT. Please see our terms for use of feeds.

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Researchers build synthetic synapse circuit, prosthetic brains still decades away

Building a franken-brain has long been a holy grail of sorts for scientists, but now a team of engineering researchers have made what they claim to be a significant breakthrough towards that goal. Alice Parker and Chongwu Zhou of USC used carbon nanotubes to create synthetic synapse circuits that mimic neurons, the basic building blocks of the brain. This could be invaluable to AI research, though the team still hasn’t tackled the problem of scope — our brains are home to 100 billion neurons, each of which has 10,000 synapses. Moreover, these nanotubes are critically lacking in plasticity — they can’t form new connections, produce new neurons, or adapt with age. All told, the scientists say, we’re decades away from having fake brains — or even sections of it — but if the technology advances as they hope it will, people might one day be able to recover from devastating brain injuries and drive cars smart enough to avert deadly accidents.

Continue reading Researchers build synthetic synapse circuit, prosthetic brains still decades away

Researchers build synthetic synapse circuit, prosthetic brains still decades away originally appeared on Engadget on Mon, 25 Apr 2011 19:24:00 EDT. Please see our terms for use of feeds.

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IBM shows off 155GHz graphene transistor in the name of DARPA research

IBM might be cautious about touting graphene as a a silicon killer, but that hasn’t stopped it from pushing the production of ever faster graphene transistors. With the recent demonstration of a 155GHz graphene transistor, the firm successfully outdid its previous record-setting efforts, which produced a cut-off frequency of 100GHz. What’s more, the thing is also IBM’s smallest to date, with a gate length of 40 nanometers; that’s 200 nanometers less than the 100GHz iteration. This smaller, faster transistor was produced as part of a DARPA research project that aims to develop high-performance RF (radio frequency) transistors. So, no, we probably won’t be seeing the things in our PCs anytime soon, but it looks like they could be right at home in war machines of the future.

IBM shows off 155GHz graphene transistor in the name of DARPA research originally appeared on Engadget on Fri, 08 Apr 2011 20:16:00 EDT. Please see our terms for use of feeds.

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NASA makes longer, straighter piezoelectric nanowires in microgravity, no flat iron needed

Piezoelectric nanowires are the stuff that make power-generating pants a possibility, and that prodigious potential has drawn the attention of NASA. You see, self-powered spacesuits are awfully attractive to our nation’s space agency, and a few of its finest student researchers have discovered that the current-creating strands of zinc oxide can be made longer and straighter — and therefore more powerful — when freed from gravity’s unrelenting pull. That means nanowires grown in microgravity could lead to higher capacity batteries and the aforementioned juice-generating interstellar garb. Of course, there’s no such end-products yet, but let’s see if NASA can do what others have not: give pants-power to the people.

NASA makes longer, straighter piezoelectric nanowires in microgravity, no flat iron needed originally appeared on Engadget on Wed, 06 Apr 2011 01:57:00 EDT. Please see our terms for use of feeds.

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Nanogenerators produce electricity by squeezing your fingers together, while you dance

It’s been a while since we last heard about nanogenerators — you know, those insanely tiny fibers that could potentially be woven into your hoodie to juice up your smartphone. Dr. Zhong Lin Wang of the Georgia Institute of Technology has reported that he and his team of Einsteins constructed nanogenerators with enough energy to potentially power LCDs, LEDs and laser diodes by moving your various limbs. These micro-powerhouses — strands of piezoelectric zinc oxide, 1 / 500 the width of a single hair strand — can generate electrical charges when flexed or strained. Wang and his team of researchers shoved a collection of their nanogenerators into a chip 1 / 4 the size of a stamp, stacked five of them on top of one another and can pinch the stack between their fingers to generate the output of two standard AA batteries — around 3 volts. Although it’s not much, we’re super excited at this point in development — imagine how convenient to charge your phone in your pocket sans the bulky battery add-ons. And that’s only one application of this technology. Yea, we know.

Continue reading Nanogenerators produce electricity by squeezing your fingers together, while you dance

Nanogenerators produce electricity by squeezing your fingers together, while you dance originally appeared on Engadget on Thu, 31 Mar 2011 20:23:00 EDT. Please see our terms for use of feeds.

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Carbon nanotubes used to more easily detect cancer cells, HIV

Cancer’s not slowing its march to ruining as many lives as it possibly can, so it’s always pleasing to hear of any new developments that act as hurdles. The latest in the world of disease-prevention comes from Harvard University, where researches have created a dime-sized carbon nanotube forest (read: lots of nanotubes, like those shown above) that can be used to trap cancer cells when blood passes through. A few years back, Mehmet Toner, a biomedical engineering professor at Harvard, created a device similar to the nano-forest that was less effective because silicon was used instead of carbon tubes. Today, Toner has teamed up with Brian Wardle, associate professor of aeronautics and astronautics at MIT, who together have redesigned the original microfluid device to work eight times more efficiently than its predecessor. The carbon nanotubes make diagnosis a fair bit simpler, largely because of the antibodies attached to them that help trap cancer cells as they pass through — something that’s being tailored to work with HIV as well. Things are starting to look moderately promising for cancer-stricken individuals, as hospitals have already began using the original device to detect malignant cells and ultimately prevent them from spreading — here’s hoping it’s qualified for mass adoption sooner rather than later.

Carbon nanotubes used to more easily detect cancer cells, HIV originally appeared on Engadget on Thu, 31 Mar 2011 01:31:00 EDT. Please see our terms for use of feeds.

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Silicine might be the new graphene, now that it’s been physically constructed

Surely you’ve heard of graphene, the one-atom-thick layer of pencil lead that has the potential to change the world of computers, batteries and screens? You might want to familiarize yourself with the term “silicine,” too. It’s basically a version of graphene constructed out of silicon, which doesn’t naturally align itself into the same eminently useful honeycomb shape — but, given a little prod here and a layer of silver or ceramic compound there, can do much the same thing, and with better computing compatibility. First proposed around 2007, it’s reportedly been produced twice now by two different teams, which gives physicists hope that it could actually be useful some day. For now, researchers need to figure out a way to easily produce it so detailed experiments can be performed — from what we understand, the good ol’ scotch tape method just won’t do the job.

Silicine might be the new graphene, now that it’s been physically constructed originally appeared on Engadget on Mon, 28 Mar 2011 06:29:00 EDT. Please see our terms for use of feeds.

Permalink Graphene-Info  |  sourceScience News  | Email this | Comments